EP1901488B1 - Netzwerksystem und Audiosignalprozessor - Google Patents

Netzwerksystem und Audiosignalprozessor Download PDF

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Publication number
EP1901488B1
EP1901488B1 EP20070116235 EP07116235A EP1901488B1 EP 1901488 B1 EP1901488 B1 EP 1901488B1 EP 20070116235 EP20070116235 EP 20070116235 EP 07116235 A EP07116235 A EP 07116235A EP 1901488 B1 EP1901488 B1 EP 1901488B1
Authority
EP
European Patent Office
Prior art keywords
audio
transport frame
audio transport
node
frame
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Not-in-force
Application number
EP20070116235
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English (en)
French (fr)
Other versions
EP1901488A3 (de
EP1901488A2 (de
Inventor
Kei Nakayama
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yamaha Corp
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Yamaha Corp
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Filing date
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Application filed by Yamaha Corp filed Critical Yamaha Corp
Publication of EP1901488A2 publication Critical patent/EP1901488A2/de
Publication of EP1901488A3 publication Critical patent/EP1901488A3/de
Application granted granted Critical
Publication of EP1901488B1 publication Critical patent/EP1901488B1/de
Not-in-force legal-status Critical Current
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks
    • H04L12/437—Ring fault isolation or reconfiguration
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation
    • H04J3/0691—Synchronisation in a TDM node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/40—Bus networks
    • H04L12/40169—Flexible bus arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/062—Synchronisation of signals having the same nominal but fluctuating bit rates, e.g. using buffers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/08—Intermediate station arrangements, e.g. for branching, for tapping-off
    • H04J3/085—Intermediate station arrangements, e.g. for branching, for tapping-off for ring networks, e.g. SDH/SONET rings, self-healing rings, meashed SDH/SONET networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/42—Loop networks

Claims (4)

  1. Netzwerksystem (1), das mehrere Knoten (2) aufweist, die jeweils Empfänger (31, 33) und Sender (34, 32) aufweisen, die über Kommunikationskabel in Reihe miteinander verbunden sind, um eine Schleifenübertragungsstrecke zu bilden, um einen Audiotransportrahmen (100) in einer einzelnen Richtung entlang dieser Strecke periodisch zirkulieren zu lassen, wobei einer der mehreren Knoten (2) ein Masterknoten (M) ist, der dazu angepasst ist, den Audiotransportrahmen (100) zu erzeugen, wobei der Audiotransportrahmen (100) mehrere Speicherbereiche (103) für Audiosignale enthält,
    wobei jeder der Knoten (2) des Netzwerksystems (1), der nicht der Masterknoten (M) ist, aufweist:
    einen Worttaktgenerator (42) zum Erzeugen eines Worttakts auf der Grundlage einer Empfangszeit (Tr1, Tr2) des von dem Empfänger (31, 33) empfangenen Audiotransportrahmens (100),
    einen Signalprozessor (320) zum Verarbeiten von Audiosignalen in Synchronisierung mit dem von dem Worttaktgenerator (42) erzeugten Worttakt;
    eine Leseeinrichtung zum Auslesen von Audiosignalen aus einem vorbestimmten Speicherbereich (103) des Audiotransportrahmens (100), wenn der Empfänger (31) einen Audiotransportrahmen (100) empfängt, und zum Liefern der Audiosignale an den Signalprozessor (320) und/oder eine Schreibeinrichtung zum Schreiben vom Signalprozessor (320) gelieferter Audiosignale in einer S-ten Periode in einen vorbestimmten Speicherbereich (103) des von dem Empfänger (31) empfangenen Audiotransportrahmens (100) in der S-ten Periode; und
    einen Sende-Controller zum Liefern des Audiotransportrahmens (100) in der S-ten Periode, ab der ein Auslesen durch die Leseeinrichtung und/oder an die ein Schreiben durch die Schreibeinrichtung durchgeführt wurde, an den Sender (32) nach Verstreichen einer vorbestimmten Zeit ab dem Empfang des Audiotransportrahmens (100) durch den Empfänger (31), und zum Steuern des Senders (32) zum Senden des Audiotransportrahmens (100),
    und wobei der Masterknoten (M) aufweist:
    einen Puffer (16) zum Speichern des von dem Empfänger (31) empfangenen Audiotransportrahmens (100);
    einen Worttaktgenerator (42) zum Erzeugen eines Worttakts mit einer konstanten Periode;
    einen Signalprozessor (320) zum Verarbeiten von Audiosignalen in Synchronisierung mit dem von dem Worttaktgenerator (42) erzeugten Worttakt;
    einen Audiotransportrahmen-Generator zum Erzeugen des Audiotransportrahmens in der S-ten Periode auf der Grundlage des Audiotransportrahmens in einer (S - k)-ten Periode, die um k Perioden früher als die S-te Periode liegt, wobei k eine ganze Zahl gleich 1 oder größer ist, der in dem Puffer (16) mit der konstanten Periode gespeichert wird;
    einen Sende-Controller zum Liefern des von dem Audiotransportrahmen-Generator erzeugten Audiotransportrahmens (100) an den Sender (32) und zum Steuern des Senders (32) zum Senden des Audiotransportrahmens (100) in Synchronisierung mit dem Worttakt; und
    eine Leseeinrichtung zum Auslesen von Audiosignalen aus einem vorbestimmten Speicherbereich (103) des Audiotransportrahmens (100), wenn der Empfänger (31) in der (S - k)-ten Periode einen Audiotransportrahmen empfängt, oder eines von dem Audiotransportrahmen-Generator auf der Grundlage des empfangenen Audiotransportrahmens erzeugten Audiotransportrahmens in der S-ten Periode und zum Liefern der Audiosignale an den Signalprozessor (320) und/oder eine Schreibeinrichtung zum Schreiben vom Signalprozessor (320) gelieferter Audiosignale in der S-ten Periode in einen vorbestimmten Speicherbereich (103) des Audiotransportrahmens in der (S - k)-ten Periode oder des Audiotransportrahmens in der S-ten Periode; und
    wobei die Leseeinrichtung jedes Knotens dazu angepasst ist, die Audiosignale um k Perioden zu verzögern, wenn die aus dem Speicherbereich (103) des Audiotransportrahmens in der S-ten Periode ausgelesenen Audiosignale, die von dem Empfänger (31) empfangen wurden, von einem anderen Knoten in der von dem Masterknoten (M) zu dem Knoten reichenden Übertragungsstrecke geschrieben werden, und das Audiosignal nicht zu verzögern, wenn die ausgelesenen Audiosignale nicht von einem anderen Knoten in der Übertragungsstrecke geschrieben werden, bevor das Audiosignal an den Signalprozessor (320) geliefert wird.
  2. Netzwerksystem gemäß Anspruch 1, wobei k ein fester Wert ist.
  3. Netzwerksystem gemäß Anspruch 1,
    wobei jeder der Knoten mit einer Einstelleinrichtung ausgestattet ist, um den Wert von k für jeden Knoten gleich einzustellen, und
    wobei das System so konfiguriert ist, dass die Übertragungsverzögerung von Audiosignalen von einer Zeit, bei der ein Knoten die Audiosignale in den Audiotransportrahmen schreibt, zu einer Zeit, bei der ein anderer Knoten die Audiosignale aus dem Audiotransportrahmen (100) ausliest und die Audiosignale an den Prozessor (320) in dem Knoten liefert, desto länger wird, je größer die Einrichtung den Wert von k einstellt.
  4. Netzwerksystem gemäß Anspruch 1, wobei einer der mehreren Knoten ein Audiosignalprozessor (2) ist, wobei der Audiosignalprozessor aufweist:
    Empfänger (31, 33) und Sender (34, 32),
    wobei der Audiosignalprozessor (2) als Geräte, die in Betrieb sind, wenn mindestens der Audiosignalprozessor (2) als ein Prozessor funktioniert, der nicht der Masterknoten in dem Netzwerksystem (1) ist, aufweist:
    einen Signalprozessor (320) zum Verarbeiten von Audiosignalen;
    eine Leseeinrichtung zum Auslesen von Audiosignalen aus einem vorbestimmten Speicherbereich (103) des Audiotransportrahmens (100), wenn der Empfänger (31) einen Audiotransportrahmen (100) empfängt, und zum Liefern der Audiosignale an den Signalprozessor (320); und
    einen Sende-Controller zum Liefern des Audiotransportrahmens (100) in der S-ten Periode, ab der ein Auslesen durch die Leseeinrichtung durchgeführt wurde, an den Sender (32) nach Verstreichen einer vorbestimmten Zeit ab dem Empfang des Audiotransportrahmens (100) durch den Empfänger (31) und zum Steuern des Senders (32) zum Senden des Audiotransportrahmens (100), und
    wobei die Leseeinrichtung jedes Knotens dazu angepasst ist, die Audiosignale um k Perioden zu verzögern, wenn die aus dem Speicherbereich (103) des Audiotransportrahmens in der S-ten Periode ausgelesenen Audiosignale, die von dem Empfänger (31) empfangen wurden, von einem anderen Knoten in der von dem Masterknoten (M) zu dem Knoten reichenden Übertragungsstrecke geschrieben werden, und die Audiosignale nicht zu verzögern, wenn die ausgelesenen Audiosignale nicht von einem anderen Knoten in der Übertragungsstrecke geschrieben werden, bevor das Audiosignal an den Signalprozessor (320) geliefert wird.
EP20070116235 2006-09-13 2007-09-12 Netzwerksystem und Audiosignalprozessor Not-in-force EP1901488B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006248287A JP4187028B2 (ja) 2006-09-13 2006-09-13 ネットワークシステム及び音響信号処理装置

Publications (3)

Publication Number Publication Date
EP1901488A2 EP1901488A2 (de) 2008-03-19
EP1901488A3 EP1901488A3 (de) 2010-03-17
EP1901488B1 true EP1901488B1 (de) 2014-11-05

Family

ID=38911293

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20070116235 Not-in-force EP1901488B1 (de) 2006-09-13 2007-09-12 Netzwerksystem und Audiosignalprozessor

Country Status (4)

Country Link
US (1) US8103016B2 (de)
EP (1) EP1901488B1 (de)
JP (1) JP4187028B2 (de)
CN (1) CN101146012B (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101540881B (zh) * 2008-03-19 2011-04-13 华为技术有限公司 实现流媒体定位播放的方法、装置及系统
US8675649B2 (en) * 2008-11-18 2014-03-18 Yamaha Corporation Audio network system and method of detecting topology in audio signal transmitting system
EP2288056A3 (de) 2009-07-22 2012-07-11 Yamaha Corporation Audiosignalverarbeitungssystem mit einer Mehrzahl durch ein Audionetzwerk verbundenen Geräten
JP5321317B2 (ja) * 2009-07-24 2013-10-23 ヤマハ株式会社 音響システム
JP5476889B2 (ja) * 2009-09-28 2014-04-23 ヤマハ株式会社 ネットワークシステム
JP2011223567A (ja) * 2010-03-24 2011-11-04 Yamaha Corp オーディオネットワークシステム及び表示方法
US8412406B2 (en) * 2010-08-13 2013-04-02 Deere & Company Method and system for performing diagnostics or software maintenance for a vehicle
JP5867187B2 (ja) 2012-03-09 2016-02-24 ヤマハ株式会社 音響信号処理システム
JP6024403B2 (ja) * 2012-11-13 2016-11-16 ヤマハ株式会社 電子音楽装置、パラメータ設定方法および当該パラメータ設定方法を実現するためのプログラム
US9672182B2 (en) * 2014-08-21 2017-06-06 Infineon Technologies Ag High-speed serial ring
JP6638249B2 (ja) * 2015-08-19 2020-01-29 ヤマハ株式会社 オーディオシステム
CN114390401A (zh) * 2021-12-14 2022-04-22 广州市迪声音响有限公司 用于音响的多通道数字音频信号实时音效处理方法及系统

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0671270B2 (ja) * 1982-01-26 1994-09-07 株式会社日立製作所 データ伝送ネットワーク
US5946315A (en) * 1995-12-28 1999-08-31 Dynarc Inc. Method and device for synchronizing dynamic synchronous transfer mode in a ring topology
JPH10210108A (ja) * 1996-11-20 1998-08-07 Okuma Mach Works Ltd 通信制御方法及び装置
US6611537B1 (en) * 1997-05-30 2003-08-26 Centillium Communications, Inc. Synchronous network for digital media streams
JP2003348684A (ja) * 2002-05-23 2003-12-05 Sony Corp カスケード接続ミキサ装置

Also Published As

Publication number Publication date
US20080232380A1 (en) 2008-09-25
JP2008072347A (ja) 2008-03-27
EP1901488A3 (de) 2010-03-17
JP4187028B2 (ja) 2008-11-26
US8103016B2 (en) 2012-01-24
EP1901488A2 (de) 2008-03-19
CN101146012A (zh) 2008-03-19
CN101146012B (zh) 2010-12-15

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